The Purchasing Department makes purchases of materials, services, supplies, and equipment for all City departments and sells City property that has been declared surplus. The Purchasing Department coordinates most purchases for all the departments and arranges for competitive bids. Bulk purchases allow the City to save money above normal discounts. Although state law prohibits the City from requiring that all purchases are made from local vendors, the Purchasing Department does strive to do business with local companies whenever possible. By working closely with local vendors, the Purchasing Department has been able to purchase most goods needed by the City from local companies, thus keeping tax dollars in Amarillo. The Purchasing Department is also in charge of overseeing the City Auctions.